Compound metal-working machine



(No Model.)

N. J. RICE.

. COMPOUND METAL WORKING MAGHINE. No. 291,775. Patented Jan. 8, 1884.

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COMPOUND METAL- WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 291,775, dated January8, 1884. Application filed May 9, 1883. (No model.)

To all whom it may concern:

Be it known that I, NICHOLAS J. Bron, of Vernon, in the county ofCrawford and State of Pennsylvania, have invented a new and usefulImprovement in Mechanical Powers; andI do hereby declare that thefollowing is a full, clear, and exact description of the same.

My invention is a double or combined lever and eccentric power forpunches, shears, presses, and the like. It is represented in theaccompanying drawings, in which- Figure 1 is a side elevation of thedevice, portions of the sides being broken away to show the workingparts. Fig. 2 is a detail view of the tool-holder and block.

In these figures the form of frame A stands for any suitable frame. Init is pivoted an eccentric, B, provided with lever or handle Z). Asecond eccentric, O, is pivoted on a bolt, 0, which slides in slots inthe sides and passes through a tenon of the said eccentric. Atool-holder, D, is pivoted at its rear end on the same boltc, this endbeing niortised or slotted to receive the tenon of eccentric C. Theforward end of holder D is recessed in any suitable way to receive apunch or other tool, (I. The slots for the bolt 0 are horizontal, togive horizontal movement to holder D. On the side of the frame is alever, E, pivoted also on bolts 0 and fulcrumed on pin e, set in theframe and passing through the slot in the lever. The upper end of leverEis connected to lever or handle of eccentric B by means of bar E. On theother side of the frame A the arrangement of lever E and bar F isduplicated. A suitable die or block, G, preferably adjustable andremovable, is provided in the frame in front of the tool cl. It may beformed to slide in a dovetail groove and have a cutting-edge, or beperforated, or have a smooth face, according to the tool used in holderD.

It will be observed that line ;1 is longer than .r-that is to say, thehigh parts of the eccentrics are brought into action by pushing thehandle in direction of the arrow, and by this movement the holder D isforced forward toward G. The same movement pushes the upper ends oflever E in the same direction. Reverse movement brings the low part ofthe eccentrics into action and shortens the dis tance between the pivotsof the eccentrics. This permits the levers to draw back the holder D andtool (1. Thus the levers add their force to that of the eccentric in theforward movement, and in the reverse pull back the holder and tool, andat the same time push eccentric B. The bolt 0 should be stout, as itbears the strain both of eccentric and levers.

Having thus described myinvention, what I claim is- 1. The combination,with the frame having suitable fixed die or tool, of the eccentric B,provided with a handle, the eccentric O, pivoted on sliding bolt, thetool-holder connected also to said bolt, and suitable connectingdevices, whereby the holder and eccentric O are drawn back, allsubstantially as described.

2. The combination, with the frame having suitable die or tool, G, ofthe eccentric B, having handle, eccentric G, pivoted with holder D onsliding bolt, the levers E, and connect ing-bar F, all substantially asdescribed.

In testimony whereof I have signed my name to this specification inthcpresence of two subscribing witnesses.

NICHOLAS .I. RICE.

\Vitnesses:

HENRY SonwAn, S. A. ROCKWELL.

back the eccentric O, keeping it in gear with

